Dump-wagon.



PATENTED JAN. 29, 1907.

R. H. MAOOLERNAN.

DUMP WAGON. APPLICATION FILED MAY 29. 1908.

WITNESSES Tu: NORRIS FETERS'CQ, wnsnmcmu, D. c

TINTTHD STATES PATENT OFFICE.

RICHARD H. MAGCLERNAN, PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO CONTRACTORS WAGON COMPANY, OF PHILADELPHIA, PENNSYL- VANIA, A CORPORATION OF PENNSYLVANIA.

DUMP-WAGON.

Specification of Letters Patent. Patented Jan. 29, 1907.

filed May 29,1906. Serial No. 319,251-

Application To all whom it may concern: member of a hinge connecting the doors to Be it known that I, RIOHARD H. MAGCLER- l the wagon-box a, and in a longitudinal direc- NAN, a citizen of the United States, residing 1 tion by trusses e, forming the subject-matter at the city of Philadelphia, in the county of of the present application. Philadelphia and State of Pennsylvania, As showninFigs. 2and3,each of the trusses have invented certain new and useful Iml e is formed of a strip or bar 6 preferably provements in Dump-Wagons, of which the consisting of wood suitably secured to the following is a specification. doors cl and (1 adjacent to the abutting or l overlapping ends d thereof. To this bar e, forming the compression member of the truss e, is secured a channel-iron 0 forming the tension member thereof, which supports a bolt e forming the strut of the truss e. As shown in Fig. 4, the bar e is provided with an opening 6'', adapted to receive and loosely guide the threaded end a of the bolt e while a nut a engaging the threaded portion of the bolt 6 andbearing against the bar e, forms in conjunction with the bolt e the rigid strut of the truss e. The trusses e thus constructed prevent the bending and sagging of the doors (I and d at their abutting or overlapping ends (1 under the stress of a load resting thereon. The formation of an opening between the overlapping doors, due to bending or sagging and of spilling the same, especially semiliquid or powdered substances, is thus effectually overcome.

If from one cause or the other the trusses e become distorted, they can be readily adjusted and brought back to normal shape by the bolts 6 and nuts c of the respective trusses in the following preferred manner: By loosening the jam-nut e holding the nut e in the position given on the bolt 6 the nut My invention has relation to a dumpwagon, and in such connection it relates more particularly to means for preventing bending or sagging of doors forming the wagon-bottom while under the stress of a l 0 ad.

The principal objects of my invention are, first, to provide each of the bottom doors of a dump-wagon with a truss to maintain the doors in a normally straight condition against bending or sagging under the stress of a load supported by the same, and second, to provide the truss with means to permit of adjustment due to distortion thereof.

The nature and scope of my invention will be more fully understood from the following description, taken in connection with the accompanying drawings,forming part hereof, in which- Figure 1 is a view illustrating in side elevation a dump-wagon with the doors in an open position having a truss arranged adjacent to the abutting ends thereof, forming main features of my present invention. Fig. 2 is a view illustrating in cross-section the w'agon box with the doors in a closed position and the trusses to prevent bending or sagging thereof. Fig. 3 is a detail view illus- 6 may be turned on the bolt 6 and hence trating in end elevation one of the bottom sagging of the doors (1 and ddue, for instance, to the expansion of the channel-iron or tension member 0 or the wear of the bar 6 by the washer e interposed between the same and nut 6 obviatedmay be readily compensated for by changing the position of the supporting-nut e on the bolt e and returning the bent portion of the compression member or bar 6 of the truss e and by the same the bent or sagged portion of the doors (1 and (1 will be restored to their normally straight condition. In this instance the free or threaded end e of the bolt 6 will be slightly doors and a truss connected therewith; and Fig. A is a detail View enlarged illustrating, partly in elevation and partly in section, a truss and a portion of the door supporting the truss and means connected with the strut of the truss for compensating for distortion. as well as wear of the parts thereof.

Referring to the drawings, a represents the wagon-box, to the sides a of which in the present instance by means of bars I), having l hooks b, and channel-irons 0, having openings 0, through which the hooks I) pass, are connected doors (1 and (1. Each of the doors (1 and (1 preferably consists of a sheet of metal which is strengthened in a transverse direction by the channel-irons c, forming one 1 ber or channel-iron e be readily understood from Fig. 4.

Preferably at the ends of'the tension memof the truss e and semoved in the opening 6 of the bar e, as W11];

cured to the compression member or bar 6 thereof are arranged guide-pieces f, through which the chain h, raising the doors and holding the same in a closed position, are conducte By employing channel -irons e instead of rods or bars, the same will also serve to hold the chain 72 in position below the doors (2 and cl by resting therein, as shown in.Fig. 3. In this instance, however, the Chitin h will engage the apex of the truss e on y.

Instead of using the bar e as the compression member of the truss e the same may be dispensed with and the doors d and d serve as such member.

Having thus described the nature and objects of my invention, what I claim as new,

. and desire to secure by Letters Patent, is

1. In a dump-wagon, a wagon-box, doors pivotally secured thereto and forming the bottom of said wagonboX, for holding said doors in a closed or operative position, trusses arranged adjacent .to the abutting ends of said doors, each of said trusses, consisting of a bar forming a compression memer, a rod secured thereto and forming the tension member and a bolt, forming the strut member of said truss and means arranged on said bolt and adapted when actuated to readjust in conjunction with the bolt said truss.

2. In a dump-wagon, a Wagon-box, doors pivotally secured thereto and forming the bottom of said wagon-box, trusses arranged adjacent to the abutting ends of said doors, each of said trusses, consisting of a bar secured to said doors and forming the compression member, a channel-ironsecured to said bar and forming the tension member and a bolt interposed between said bar and channel-iron and forming the strut member of said truss, and chains for holding said doors in a closed or operative position passing over said truss.

3. In a dump-wagon, a wagon-box, doors pivotally secured thereto and forming the bottom of said wagon-box, trusses arranged adjacent to the abutting ends of said doors, each of said trusses, consisting of a bar forming the compression member, a channel-iron secured to said bar and forming the tension member, a threaded bolt supported by the channel-iron and forming the strut member of said truss, and means arranged on said bolt and adapted, when actuated, to readjust in conjunction with the bolt said truss.

4. In a dump-wagon, a wagon-box, doors pivotally secured thereto and forming the bottom ofsaid Wagon-box, trusses arranged adjacent to the abutting ends of said doors, each of said trusses, consisting of a bar forming the compression member, having an opening, a channel-iron secured thereto and forming the tension member, a threaded bolt supported by the channel-iron and engaging the opening of said bar and forming the strut member of said truss, nuts arranged on the bolt and adapted, when actuated, to readjust in conjunction with the bolt said truss when distorted, and means for holding said doors in an operative position and passing over the apex of the tension member of said truss.

In witness whereof I have hereunto set my signature in the presence of two subscribing witnesses.

RICHARD H. MAOCLERNAN. itnesses:

J. WALTER DOUGLASS, THOMAS M. SMITH. 

